1 /* SPDX-License-Identifier: BSD-3-Clause
15 #include <sys/types.h>
16 #include <sys/syscall.h>
18 #include <rte_byteorder.h>
19 #include <rte_common.h>
21 #include <rte_debug.h>
22 #include <rte_memory.h>
23 #include <rte_tailq.h>
25 #include <rte_malloc.h>
28 #include <dpaa_mempool.h>
30 /* List of all the memseg information locally maintained in dpaa driver. This
31 * is to optimize the PA_to_VA searches until a better mechanism (algo) is
34 struct dpaa_memseg_list rte_dpaa_memsegs
35 = TAILQ_HEAD_INITIALIZER(rte_dpaa_memsegs);
37 struct dpaa_bp_info rte_dpaa_bpid_info[DPAA_MAX_BPOOLS];
40 dpaa_mbuf_create_pool(struct rte_mempool *mp)
43 struct bm_buffer bufs[8];
44 struct dpaa_bp_info *bp_info;
46 int num_bufs = 0, ret = 0;
47 struct bman_pool_params params = {
48 .flags = BMAN_POOL_FLAG_DYNAMIC_BPID
51 MEMPOOL_INIT_FUNC_TRACE();
53 bp = bman_new_pool(¶ms);
55 DPAA_MEMPOOL_ERR("bman_new_pool() failed");
58 bpid = bman_get_params(bp)->bpid;
60 /* Drain the pool of anything already in it. */
62 /* Acquire is all-or-nothing, so we drain in 8s,
63 * then in 1s for the remainder.
66 ret = bman_acquire(bp, bufs, 8, 0);
68 ret = bman_acquire(bp, bufs, 1, 0);
73 DPAA_MEMPOOL_WARN("drained %u bufs from BPID %d",
76 rte_dpaa_bpid_info[bpid].mp = mp;
77 rte_dpaa_bpid_info[bpid].bpid = bpid;
78 rte_dpaa_bpid_info[bpid].size = mp->elt_size;
79 rte_dpaa_bpid_info[bpid].bp = bp;
80 rte_dpaa_bpid_info[bpid].meta_data_size =
81 sizeof(struct rte_mbuf) + rte_pktmbuf_priv_size(mp);
82 rte_dpaa_bpid_info[bpid].dpaa_ops_index = mp->ops_index;
83 rte_dpaa_bpid_info[bpid].ptov_off = 0;
84 rte_dpaa_bpid_info[bpid].flags = 0;
86 bp_info = rte_malloc(NULL,
87 sizeof(struct dpaa_bp_info),
90 DPAA_MEMPOOL_WARN("Memory allocation failed for bp_info");
95 rte_memcpy(bp_info, (void *)&rte_dpaa_bpid_info[bpid],
96 sizeof(struct dpaa_bp_info));
97 mp->pool_data = (void *)bp_info;
99 DPAA_MEMPOOL_INFO("BMAN pool created for bpid =%d", bpid);
104 dpaa_mbuf_free_pool(struct rte_mempool *mp)
106 struct dpaa_bp_info *bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
108 MEMPOOL_INIT_FUNC_TRACE();
111 bman_free_pool(bp_info->bp);
112 DPAA_MEMPOOL_INFO("BMAN pool freed for bpid =%d",
114 rte_free(mp->pool_data);
115 mp->pool_data = NULL;
120 dpaa_buf_free(struct dpaa_bp_info *bp_info, uint64_t addr)
122 struct bm_buffer buf;
125 DPAA_MEMPOOL_DPDEBUG("Free 0x%" PRIx64 " to bpid: %d",
126 addr, bp_info->bpid);
128 bm_buffer_set64(&buf, addr);
130 ret = bman_release(bp_info->bp, &buf, 1, 0);
132 DPAA_MEMPOOL_DEBUG("BMAN busy. Retrying...");
133 cpu_spin(CPU_SPIN_BACKOFF_CYCLES);
139 dpaa_mbuf_free_bulk(struct rte_mempool *pool,
140 void *const *obj_table,
143 struct dpaa_bp_info *bp_info = DPAA_MEMPOOL_TO_POOL_INFO(pool);
147 DPAA_MEMPOOL_DPDEBUG("Request to free %d buffers in bpid = %d",
150 if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
151 ret = rte_dpaa_portal_init((void *)0);
153 DPAA_MEMPOOL_ERR("rte_dpaa_portal_init failed with ret: %d",
160 uint64_t phy = rte_mempool_virt2iova(obj_table[i]);
162 if (unlikely(!bp_info->ptov_off)) {
163 /* buffers are from single mem segment */
164 if (bp_info->flags & DPAA_MPOOL_SINGLE_SEGMENT) {
165 bp_info->ptov_off = (size_t)obj_table[i] - phy;
166 rte_dpaa_bpid_info[bp_info->bpid].ptov_off
171 dpaa_buf_free(bp_info,
172 (uint64_t)phy + bp_info->meta_data_size);
176 DPAA_MEMPOOL_DPDEBUG("freed %d buffers in bpid =%d",
183 dpaa_mbuf_alloc_bulk(struct rte_mempool *pool,
187 struct rte_mbuf **m = (struct rte_mbuf **)obj_table;
188 struct bm_buffer bufs[DPAA_MBUF_MAX_ACQ_REL];
189 struct dpaa_bp_info *bp_info;
194 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(pool);
196 DPAA_MEMPOOL_DPDEBUG("Request to alloc %d buffers in bpid = %d",
197 count, bp_info->bpid);
199 if (unlikely(count >= (RTE_MEMPOOL_CACHE_MAX_SIZE * 2))) {
200 DPAA_MEMPOOL_ERR("Unable to allocate requested (%u) buffers",
205 if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
206 ret = rte_dpaa_portal_init((void *)0);
208 DPAA_MEMPOOL_ERR("rte_dpaa_portal_init failed with ret: %d",
215 /* Acquire is all-or-nothing, so we drain in 7s,
216 * then the remainder.
218 if ((count - n) > DPAA_MBUF_MAX_ACQ_REL) {
219 ret = bman_acquire(bp_info->bp, bufs,
220 DPAA_MBUF_MAX_ACQ_REL, 0);
222 ret = bman_acquire(bp_info->bp, bufs, count - n, 0);
224 /* In case of less than requested number of buffers available
225 * in pool, qbman_swp_acquire returns 0
228 DPAA_MEMPOOL_DPDEBUG("Buffer acquire failed (%d)",
230 /* The API expect the exact number of requested
231 * buffers. Releasing all buffers allocated
233 dpaa_mbuf_free_bulk(pool, obj_table, n);
236 /* assigning mbuf from the acquired objects */
237 for (i = 0; (i < ret) && bufs[i].addr; i++) {
238 /* TODO-errata - objerved that bufs may be null
239 * i.e. first buffer is valid, remaining 6 buffers
242 bufaddr = DPAA_MEMPOOL_PTOV(bp_info, bufs[i].addr);
243 m[n] = (struct rte_mbuf *)((char *)bufaddr
244 - bp_info->meta_data_size);
245 DPAA_MEMPOOL_DPDEBUG("Paddr (%p), FD (%p) from BMAN",
246 (void *)bufaddr, (void *)m[n]);
251 DPAA_MEMPOOL_DPDEBUG("Allocated %d buffers from bpid=%d",
257 dpaa_mbuf_get_count(const struct rte_mempool *mp)
259 struct dpaa_bp_info *bp_info;
261 MEMPOOL_INIT_FUNC_TRACE();
263 if (!mp || !mp->pool_data) {
264 DPAA_MEMPOOL_ERR("Invalid mempool provided\n");
268 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
270 return bman_query_free_buffers(bp_info->bp);
274 dpaa_populate(struct rte_mempool *mp, unsigned int max_objs,
275 void *vaddr, rte_iova_t paddr, size_t len,
276 rte_mempool_populate_obj_cb_t *obj_cb, void *obj_cb_arg)
278 struct dpaa_bp_info *bp_info;
279 unsigned int total_elt_sz;
281 MEMPOOL_INIT_FUNC_TRACE();
283 if (!mp || !mp->pool_data) {
284 DPAA_MEMPOOL_ERR("Invalid mempool provided\n");
288 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
289 total_elt_sz = mp->header_size + mp->elt_size + mp->trailer_size;
291 DPAA_MEMPOOL_DEBUG("Req size %" PRIx64 " vs Available %u\n",
292 (uint64_t)len, total_elt_sz * mp->size);
294 /* Detect pool area has sufficient space for elements in this memzone */
295 if (len >= total_elt_sz * mp->size)
296 bp_info->flags |= DPAA_MPOOL_SINGLE_SEGMENT;
297 struct dpaa_memseg *ms;
299 /* For each memory chunk pinned to the Mempool, a linked list of the
300 * contained memsegs is created for searching when PA to VA
301 * conversion is required.
303 ms = rte_zmalloc(NULL, sizeof(struct dpaa_memseg), 0);
305 DPAA_MEMPOOL_ERR("Unable to allocate internal memory.");
306 DPAA_MEMPOOL_WARN("Fast Physical to Virtual Addr translation would not be available.");
307 /* If the element is not added, it would only lead to failure
308 * in searching for the element and the logic would Fallback
309 * to traditional DPDK memseg traversal code. So, this is not
310 * a blocking error - but, error would be printed on screen.
318 /* Head insertions are generally faster than tail insertions as the
319 * buffers pinned are picked from rear end.
321 TAILQ_INSERT_HEAD(&rte_dpaa_memsegs, ms, next);
323 return rte_mempool_op_populate_default(mp, max_objs, vaddr, paddr, len,
327 struct rte_mempool_ops dpaa_mpool_ops = {
328 .name = DPAA_MEMPOOL_OPS_NAME,
329 .alloc = dpaa_mbuf_create_pool,
330 .free = dpaa_mbuf_free_pool,
331 .enqueue = dpaa_mbuf_free_bulk,
332 .dequeue = dpaa_mbuf_alloc_bulk,
333 .get_count = dpaa_mbuf_get_count,
334 .populate = dpaa_populate,
337 MEMPOOL_REGISTER_OPS(dpaa_mpool_ops);